Nbde Anatomy Iii

Front 1

Each of the following is found in dentin Except one.
a) Contour lines of Owen
b) Tomes granular layer
c) Odontoblastic processes
d) Striae of Retzius
e) Neonatal lines

Back 1

Striae of Retzius

Front 2

Which of the following structures is found within the vestibule of the oral cavity?
a) Stensen's duct
b) Wharton's duct
c) Tongue
d) Sublingual fold
e) Uvula

Back 2

Stensen's Duct

Front 3

Levator veli palatini is mainly innervated by which nerve?

Back 3

CN X

Front 4

Which of the following is Not a component of the temporomandibular joint?
a) articular disc
b) extracapsular ligaments
c) complete flat surface for gliding movements
d) two joint cavities
e) lateral ligaments

Back 4

Complete flat surface for gliding movements

Front 5

Which of the following is Not a correct vestigial structure associated with the heart and great vessels?
a) ductus venosus - ligamentum venosum
b) umbilical vein - ligamentum teres
c) umbilical artery - superior vesicular ligament
d) foramen ovale - fossa ovalis
e) ductus arteriosum - ligamentum arteriosum

Back 5

Umbilical artery - superior vesicular ligament

Front 6

Which of the following structures are the ends of odontoblastic processes that penetrate the enamel?
a) enamel lamellae
b) perikymata
c) enamel spindles
d) enamel tufts
e) dead tracts

Back 6

Enamel spindles

Front 7

Which of the following embryonic precursors form cementoblasts?
a) dental papilla
b) inner enamel epithelium
c) Hertwig's epithelial rooth sheath
d) outer enamel epithelium
e) dental sac

Back 7

Dental sac

Front 8

The largest artery which supplies the dura mater traverses through which of the following?
a) Foramen rotundum
b) Foramen lacerum
c) Foramen ovale
d) Foramen spinosum
e) Stylomastoid foramen

Back 8

Foramen spinosum

Front 9

What structure does cerebrospinal fluid pass through as it travels from the lateral ventricles to the third ventricle?

Back 9

Foramen of Monro

Front 10

The Salpingopharyngeus muscle is derived from the?

Back 10

4th & 6th Branchial arches

Front 11

Osteocytes communicate with each other by extending cytoplasmic processes through small cavities in bone called?

Back 11

Canaliculi

Front 12

Each of the following structures is derived in association with the 1st branchial arch Except one.
a) Muscles of mastication
b) Sphenomandibular ligament
c) Trigeminal nerve
d) Hyoid bone
e) Malleus bone

Back 12

Hyoid bone

Front 13

Which of the following is Not a gingival connective tissue fiber?
a) Circumferential
b) Interradicular
c) Semicircular
d) Dentoperiosteal
e) Transseptal

Back 13

Interradicular

Front 14

Which of the following tooth germ components are developed by mesenchyme?
a) Dental papilla and enamel organ
b) Dental sac and dental papilla
c) Enamel organ, dental papilla, and dental sac
d) Dental papilla only
e) Enamel organ only

Back 14

Dental sac and Dental papilla

Front 15

A patient is incapable of protruding the mandible. The likely disfunction is in which muscle(s)?

Back 15

Lateral pterygoid

Front 16

Each of the following is a branch of the maxillary artery Except one.
a) Accessory meningeal artery
b) Middle meningeal artery
c) Masseteric artery
d) Greater palatine artery
e) Anterior auricular artery

Back 16

Anterior auricular artery

Front 17

Which of the following is the first type of cementum formed on a developing root?
a) Cellular extrinsic fibers
b) Acellular extrinsic fibers
c) Acellular intrinsic fibers
d) Cellular intrinsic fibers
e) Acellular afibrillar

Back 17

Acellular intrinsic fibers

Front 18

Which of the following is Not ectomesenchymally derived?
a) Alveolar bone
b) Periodontal ligament
c) Dentin
d) Enamel
e) Pulp

Back 18

Enamel

Front 19

The attachment point of the medial end of the inguinal ligament is the?

Back 19

Pubic tubercle

Front 20

Which of the following is formed from ectomesenchyme?
a) Stellate reticulum
b) Hertwig's epithelial root sheat
c) Enamel
d) Dental papilla
e) Stratum intermedium

Back 20

Dental papilla

Front 21

Dentin formation initiates
a) at the cervical loop
b) after amelogenesis
c) after closure of root
d) at the incisal tip
e) prior to odontoblastic differentiation

Back 21

At the incisal tip

Front 22

The spleen is in the nearest proximity to which of the following structures?
a) Ascending colon
b) Duodenum
c) Inferior surface of diaphragm
d) Left kidney
e) Left lobe of liver

Back 22

Inferior surface of diaphragm

Front 23

Which tooth development stage does dentin form in?

Back 23

Bell stage

Front 24

What is the mineral and protein content of enamel approximately?

Back 24

95% Protein
80% Mineral

Front 25

Bone differs from cartilage in that?

Back 25

Bone is vascular and cartilage is not

Front 26

What cells are responsible for maintaining the blood brain barrier?

Back 26

Astrocytes

Front 27

T/F
The thyrohyoid muscle is innervated by the ansa cervicalis. The geniohyoid muscle is innervated by the ansa cervicalis.

Back 27

Both statements are False
All of the infrahyoid muscles are innervated by ansa cervicalis from the cervical plexus(C1-3) EXCEPT for the thyrohyoid muscle, which is innervated by only C1.
The nerve supply to geniohyoid is from C1 running with the hypoglossal nerve.

Front 28

T/F
The fovea centralis of the eye is located within the macula lutea. The fovea centralis of the eye contains cones only.

Back 28

Both statements are True

Front 29

Which type of collagenous connective tissue is found in tendons?

Back 29

Dense Regular

Front 30

Which dural venous system does the Great Cerebral Vein of Galen drain into?

Back 30

Straight Sinus

Front 31

A 72-year old patient presents to the clinic for a regular checkup. The patient complains of a dry mouth. The patient complains of being very fatigued and has had a dry eye which has had a dry eye which has persisted for a few months. Upon examination of his mouth, you note severe recurrent decay in many of his teeth. The dentist informs the patient that there is evidence of early signs of periodontitis. Because the patient’s mandibular molar reveals significant recurrent decay, the dentist presents a few treatment options to the patient.

The dentist educates the patient by underscoring that a lack of saliva correlates to an increased susceptibility to dental caries. Which of the following has the highest percentage of mucus secretion?
a) Parotid
b) Sublingual
c) Submandibular
d) Von Ebner
e) Esophageal mucosa

Back 31

Sublingual

Front 32

A 72-year old patient presents to the clinic for a regular checkup. The patient complains of a dry mouth. The patient complains of being very fatigued and has had a dry eye which has had a dry eye which has persisted for a few months. Upon examination of his mouth, you note severe recurrent decay in many of his teeth. The dentist informs the patient that there is evidence of early signs of periodontitis. Because the patient’s mandibular molar reveals significant recurrent decay, the dentist presents a few treatment options to the patient.

An x-ray reveals dental decay affecting one of the mandibular molar teeth. The nerve that the dentist anesthetizes to perform a Class II amalgam restoration is the?

Back 32

Inferior alveolar nerve

Front 33

A 72-year old patient presents to the clinic for a regular checkup. The patient complains of a dry mouth. The patient complains of being very fatigued and has had a dry eye which has had a dry eye which has persisted for a few months. Upon examination of his mouth, you note severe recurrent decay in many of his teeth. The dentist informs the patient that there is evidence of early signs of periodontitis. Because the patient’s mandibular molar reveals significant recurrent decay, the dentist presents a few treatment options to the patient.

When performing a nerve block at the mandibular foramen, the needle will penetrate the mucous membrane and lie?

Back 33

Lateral to both the medial pterygoid muscle and pterygomandibular raphe

Front 34

In the human embryo, induction of odontogenesis can be observed in the?

Back 34

6th week

Front 35

A pregnant patient presents to the clinic for a regular checkup. The dentist determines that the patient has contracted a viral infection and the dentist speculates that it is an RNA virus that is the culprit. The patient also displays dyspnea which is noted in the medical records.

The patient is referred to a pulmonary specialist who will take a chest xray to better ascertain the clinical presentation of the pregnant patient. Which of the following structures does the internist NOT find in the posterior mediastinum?
a) Descending aorta
b) Hemiazygous vein
c) Phrenic neve
d) Esophagus
e) Vagus nerve

Back 35

Phrenic nerve

Front 36

A painter is painting in your dental office and falls off the ladde and fractures the right condyle. You seat your painter in the dental chair and begin diagnosis. The painter reports of pain radiating to the ear, face, and sides of the neck. The patient has also lost his voice.

The articular surfaces of the temporomandibular joint are covered by hyaline cartilage. Sensory innervation to the temporomandibular joint is, in part, through the auriculotemporal and messeteric nerves.
T/F

Back 36

The First statement is False
The Second is True

Front 37

A painter is painting in your dental office and falls off the ladde and fractures the right condyle. You seat your painter in the dental chair and begin diagnosis. The painter reports of pain radiating to the ear, face, and sides of the neck. The patient has also lost his voice.

The painter develops severe pain radiating from the temporomandibular joint. Which nerve does the pain pathway impulse travel through?

Back 37

Auriculotemporal

Front 38

A painter is painting in your dental office and falls off the ladde and fractures the right condyle. You seat your painter in the dental chair and begin diagnosis. The painter reports of pain radiating to the ear, face, and sides of the neck. The patient has also lost his voice.

The posterior slope of the articular eminence is composed mainly of?

Back 38

Fibrous Connective Tissue

Front 39

A painter is painting in your dental office and falls off the ladde and fractures the right condyle. You seat your painter in the dental chair and begin diagnosis. The painter reports of pain radiating to the ear, face, and sides of the neck. The patient has also lost his voice.

Which nerve carries sensory innervation to the laryngeal mucosa above the vocal folds?

Back 39

Internal branch of the Superior Laryngeal Nerve

Front 40

A painter is painting in your dental office and falls off the ladde and fractures the right condyle. You seat your painter in the dental chair and begin diagnosis. The painter reports of pain radiating to the ear, face, and sides of the neck. The patient has also lost his voice.

Which laryngeal muscle is responsible for the abduction of the vocal fold?

Back 40

Posterior Cricoarytenoid

Front 41

A 8 year old child was playing football during recess and gets into a big fight that arises after an altercation concerning the last football play. The child is brought to the dental clinic to repair his chipped maxillary central incisor. The dentist observes that the patient has a lot of blood on the face and the lip. The dentist cleans up the patient before proceeding with the restoration of the tooth to its original esthetics and functionality.

The innervation to the biceps brachii muscle comes from which nerve?

Back 41

Musculocutaneous

Front 42

A 8 year old child was playing football during recess and gets into a big fight that arises after an altercation concerning the last football play. The child is brought to the dental clinic to repair his chipped maxillary central incisor. The dentist observes that the patient has a lot of blood on the face and the lip. The dentist cleans up the patient before proceeding with the restoration of the tooth to its original esthetics and functionality.

Which of the following is the intermediate filament protein found only in muscle tissues?
a) Desmin
b) Neurofilament
c) Vimentin
d) Keratin
e) Glail fibrillar

Back 42

Desmin

Front 43

As your geriatric patient approaches your dental chair on crutches, you observe that the patient may also have vision problems. The patient states that due to his poor vision, he suffered a fall last week that inflicted a fracture in his mandible and chipped most of his anterior teeth. You perform an extraoral examination before proceeding with restoring the patient's broken anterior teeth.

While performing a corneal reflex test, you observe neither eye blinks upon touching the right cornea and both eyes blink on touching the left cornea. which cranial nerve is likely to be affected?

Back 43

RIGHT Trigeminal nerve

Front 44

As your geriatric patient approaches your dental chair on crutches, you observe that the patient may also have vision problems. The patient states that due to his poor vision, he suffered a fall last week that inflicted a fracture in his mandible and chipped most of his anterior teeth. You perform an extraoral examination before proceeding with restoring the patient's broken anterior teeth.

How many bones make up the bony orbit?

Back 44

Seven

Front 45

As your geriatric patient approaches your dental chair on crutches, you observe that the patient may also have vision problems. The patient states that due to his poor vision, he suffered a fall last week that inflicted a fracture in his mandible and chipped most of his anterior teeth. You perform an extraoral examination before proceeding with restoring the patient's broken anterior teeth.

The patient seems to be suffering complete blindness in the left eye. The lesion most likely occurred where?

Back 45

LEFT optic nerve

Front 46

As your geriatric patient approaches your dental chair on crutches, you observe that the patient may also have vision problems. The patient states that due to his poor vision, he suffered a fall last week that inflicted a fracture in his mandible and chipped most of his anterior teeth. You perform an extraoral examination before proceeding with restoring the patient's broken anterior teeth.

You notice that the patient is repeatedly blinking in the right eye. The efferent loop of the blink reflex is supplied by which of the following nerves?
a) Oculomotor
b) Trochlear
c) Trigeminal
d) Abducens
e) Facial

Back 46

Facial

Front 47

As your geriatric patient approaches your dental chair on crutches, you observe that the patient may also have vision problems. The patient states that due to his poor vision, he suffered a fall last week that inflicted a fracture in his mandible and chipped most of his anterior teeth. You perform an extraoral examination before proceeding with restoring the patient's broken anterior teeth.

Each of the following extraocular muscles are innervated by the oculomotor nerve Except one.
a) Superior rectus
b) Inferior rectus
c) Medial rectus
d) Lateral rectus
e) Inferior oblique

Back 47

Lateral Rectus